void Attach()
{
_contentProperty.Attach(OnContentChanged);
_wrapProperty.Attach(OnLayoutPropertyChanged);
_scrollProperty.Attach(OnLayoutPropertyChanged);
HorizontalAlignmentProperty.Attach(OnLayoutPropertyChanged);
VerticalAlignmentProperty.Attach(OnLayoutPropertyChanged);
FontFamilyProperty.Attach(OnFontChanged);
FontSizeProperty.Attach(OnFontChanged);
HorizontalContentAlignmentProperty.Attach(OnLayoutPropertyChanged);
VerticalContentAlignmentProperty.Attach(OnLayoutPropertyChanged);
}